<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<script src="js/jquery.js" type="text/javascript" charset="utf-8"></script>
	</head>
	<body>
		<input id="start" type="button" value="开始"/>
		<input id="stop" type="button" value="结束" disabled="disabled"/>
		<script type="text/javascript">
			$("#start").click(function () {
				$(this).attr("disabled","disabled");
				$("#stop").removeAttr("disabled");
			});
			$("#stop").click(function () {
				$(this).attr("disabled","disabled");
				$("#start").removeAttr("disabled");
			});
		</script>
		性别：
		<input type="radio" value="m" name="sex"/>男
		<input type="radio" value="f" checked="checked" name="sex"/>女
	    年:
	    <select>
	    	<option value="1971">1971</option>
	    	<option value="1972">1972</option>
	    	<option value="1973">1973</option>
	    	<option value="1974">1974</option>
	    	<option value="1975" selected="selected">1975</option>
	    	<option value="1976">1976</option>
	    	<option value="1977">1977</option>
	    	<option value="1978">1978</option>
	    	<option value="1979">1979</option>
	    </select>
	</body>
</html>
